Machine for applying spots to bottle caps



y 24, 1949' A. WEISENBURG ,471,255

MACHINE FOR APPLYING SPOTS TO BOTTLE CAPS Filed Feb. :5, 1942 12sneaks-sheet 1 May 24, 1949. A. WE ISENBURG MACHINE .FOR APPLYING SPOTSTO BOTTLE CAPS 12 Sheets-Sheet 2 Filed Feb. 3, 1942 May 24, 1949.

Filed Feb. 3, 1942 A. WEISENBURG MACHINE FOR APPLYING SPOTS TO BOTTLECAPS 12 Sheei5-Sheet 3 12 Sheets-Sheet 4 A. WEISENBURG MACHINE FORAPPLYING SPOTS TO BOTTLE CAPS May 24, 1949.

Filed Feb. :5, 1942 A. WEISENBURG MACHINE FOR APPLYING SPOTS TQ BOTTLECAPS l2 Sheets-Sheet 5 May 24, 1949.

Filed Feb. 5, 1942 May 24, 1949. A. WEISENBURG 2,471,255

7 CHINE FOR APPLYING SPOTS '10 BOTTLE CAPS Filed Feb. 3, 1942 12Sheets-Sheet 6 May Filed MACHINE FOR APPLYING SPOTS Feb. 3, 1942 A.WEISENBU To BOTTLE CAPS 12 Sheets-Sheet 7 &

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May 24, 1949. A. WEISENBURG 2,471,255

MACHINE FOR APPLYING SPOTS TO BOTTLE GAPS Filed Feb. 3, 1942 12Sheets-Sheet s r w u fl v wfi .0 Emma Uzo w .Q 5% MM &3? "t a n. rw 3 lil 7.2M a. a HIP m hw-u J. Wmb. x m 6 5 7.. n i, m \\\\\\\\FW%//|T May24, 1949. A. WElSENBURG MACHINE FOR APPLYING SPOTS TO BOTTLE CAYS l2Sheets-Sheet 9 Filed Feb. 3, 1942 m w 2 t r 1 W 1% M w 7 h W fl 1 6 K S5 rim 4 .v a 1 a w w 2 m 1 2, A w v a m 1 5.. 2 z

A. WEISENBURG MACHINE FOR APPLYING SPOTS -T0 BOTTLE CAPS May 24, 1949.

Filed Feb 3, 1942 12 Shee'ts-Sheet 11 A. WEISENBURG MACHINE FOR APPLYINGSPOTS 'I'O BOTTLE CAPS May 24, 1949.

Filed Feb. :5, 1942 May 24, 1949. A. WEISENBURG- MACHINE FOR APPLYINGSPOTS TO BOTTLE CAPS Filed Feb. 3, 1942 12 Sheets-Sheet 12 Patented May24, 1949 MACHINE FOR APPLYING SPOTS T BOTTLE cars Andrew Weisenburg,Over-brook Hills, Pa., as-v signor to Continental Can Company, Inc., NewYork, N. Y., a corporation of New York Application February 3, 1942,Serial No. 429,369

46 Claims. 1

The present invention relates to machines for applying protective spotmaterial to the inner surfaces .of caps, particularly crown caps, of thetype commonly used on bottles.

The purpose of the invention isto reduce the percentage of waste orscrap produced on a machine for applying protective spot material tocaps.

' A further purpose is to obtain greater cap production for a givenlineal speed of a machine for applying protective spot material to caps.

A further purpose is to progress protective spot material at lowerspeeds with less danger of tearing the material but without reducing theproduction in'a machine for applying protective spot material to caps.

A further purpose is to reduce the number of machines, the size ofmachines, and the financial investment in machines required to obtain agiven production in the application of protective spot material to'caps.

A further purpose, in a machine for applying protective spot material tocaps, is to progress the caps in rows by stop and go motion, to progressa strip of protective spot material transversely of the rows, with stopand go motion having corresponding stop periods, and desirablysimultaneously to cut out and afiix protective spot material to aplurality of adjoining caps in each row.

A further purpose, in a machine for applying protective spot material tocaps, is to progress a plurality of parallel rows of caps in rows withstop and go motion, to progress a strip of protective spot materialtransversely of the rows with stop and go motion having correspondingstop periods, and desirably simultaneously to cut out and afiixprotective spot material to at least one cap in each of three or morerows, and preferably to a plurality of adjoining caps in each of threeor more rows.

A further purpose, in amachine for applying protective spot material tocaps, is to progress a III plurality of parallel rows of caps with stopand go motion, the cap centers desirably being spaced by approximately amultiple of the desired spot diameter, to progress the strip ofprotective spot material transversely of the rows and with stop and gomotion having corresponding stop periods, and desirably simultaneouslyto cut out and aflix spot material to a plurality of caps in each row orless desirably to at least one cap in each of three or more rows, thedistance from the center of each line of cut-out positions to the centerof the next adjoining line being approximately equal to the diameter ofthe cut-out.

A further purpose in a machine for applying protective spot material tocrown caps, is to progress a plurality of parallel rows of crowns bottomup with stop and go motion, desirably spacing the crown centers in eachrow approximately twice the desired spot diameter, to progress a stripof protective spot material transversely over the rows with stop and gomotion having corresponding stop periods, and desirably simultaneouslyto punch out and adhesively afiix circular protective spots to aplurality of crowns in each row, each line of punching centers beinglaterally spaced from the next adjoining line by a distanceapproximately equal to the punching diameter and each punching beingstaggered with respect to the next one of an adjoining line.

A further purpose, in a machine for applying cut-out protective spotmaterial to caps, is to progress a plurality of rows of caps with stopand go motion, the cap centers being preferably spaced approximatelytwice the desired spot diameter, and the distance between row centers Idisplaced with respect to the center of the next adjoining line byapproximately the cut-ou diameter.

A further purpose, in applying punched-out protective spot material tocrown caps, is to progress a plurality of parallel rows of crowns bottorn up with stop and go motion, desirably spacing the crown centers ineach row approximately twice the desired spot diameter, the distancebetween row centers being an integer-plus-onehalf times the sum of thedesired spot diameter and the desired spacing between successive cutoutsin the same line, to progress a strip of protective spot materialtransversely over the rows with stop and go motion having correspondingstop periods, and desirably simultaneously to punch out and adhesivelyafiix circular'protective spots to a plurality of crowns in each row orless desirabiy to at least one crown in each of three or more rows, eachline of punching centers being laterally spaced from the next adjoiningline by a distance approximately equal to the spot diameter and eachpunching being staggered with respect to the next one of an adjoiningrow.

A further purpose, in a machine for applying punched-out protective spotmaterial to caps, desirably crown caps, is to progress a plurality ofparallel rows of crowns bottom up with stop and go motion, desirablyspacing the crown centers in each row approximately twice the diameterof the spot, the distance between row centers being aninteger-plus-one-half times the sum of the spot diameter and the spacingbetween successive punch-outs in the same line, to progress a strip ofprotective spot material transversely of the rows with stop and gomotion having corresponding stop periods, and desirably simultaneouslyto punch out and adhesively affix a plurality of circular protectivespots in each row, the protective spot material moving from one stopperiod to the next while the crowns move through a plurality of stop,and go cycles equal to the number of crowns simultaneously attached in asingle row, each line of punching centers bein laterally spaced by adistance approximately equal to the spot diameter and each punchingbeing staggered .with respect to the next one of an adjoining row.

A further purpose is to move the protective spot material at a speedwhich is a fraction of the speed of the caps approximately equal to thereciprocal of the multiple of the number of spots simultaneously affixedin each row times the number of spot diameters between crown centers ineach row, typical fractions being one-fourth, onesixth, etc.

A further purpose, in a machine for affixing A further purpose is toreceive a spotted crown in a. pressure dial between an anvil and aleversupported pressure head, maintaining the pressure head open forintroduction of the crown by cam action on the opposite end of thelever, and permitting resilient pressure application by the pressurehead through release of the cam.

A further purpose is to apply pressure with or without heat to spotsaflixed in crown caps by a lever urged toward closed position of apressure head by a spring, and to hold a group of such levers in openposition by cams on a cam shaft,

crown track by an eccentric finger bar and to hold the crowns duringstop periods by dwell portions on a cam below the track.

protective spot material to crown caps, is to mount a plurality ofpunches in line with each of two or more rows of crowns from a singleoperating plate so that all punches in each row and in all of the rowswill operate simultaneously during a stop period of the crowns.

A further purpose is to mount a plurality of punches in each of aplurality of rows from an operating plate and likewise to resilientlyposition crown locators for each of the punches from the same operatingplate.

A further purpose is to engage recently spotted crowns in a track byauxiliary pressure plungers cooperating at stop points in the trackbeyond the point of spot application, and preferably also to operatesuch auxiliary pressure plungers by resilient connections to anoperating plate for the spot dies.

A further purpose is to progress crowns in a plurality of rows side byside in a crown spotting machine, the crowns in the respective adjoiningrows being out of step with one another, and to abnormally advance thecrowns in a certain row or rows to bring them into step with those inthe adjoining row at an advance point in the progression beyond thepoint of spotting.

A further purpose is to progress crowns in a plurality of rows by camshaving advance portions and dwell portions, the dwell portions of thecams in the respective rows being out of step during part of the camlengths, and to provide abnormal advance portions on a certain cam orcams to bring the crowns in the rows subject to said cam or cams intostep with those in adjoining rows.

A further purpose is to progress a plurality of rows of crownslongitudinally of a spot machine in a plurality of crown tracks by camactuation and to discharge crowns at the ends of the tracks by aneccentric finger bar producing a longitudinally feeding component.

A further purpose is to receive and grip a spotted crown in a pressuredial at a plurality of stations spaced side by side and spacedcircumferentially along a cylindrical pressure dial circumference,pickin up the spotted crowns at one station and carrying them throughoutthe major portions of the machine travel under pressure to otherstations at which the crowns are discharged.

A further purpose is to receive a spotted crown in a pressure dialhaving radially inner positions and radially outer positions eachequipped with pressure plungers and anvils, and to elevate the plungersinto open positions by a cam at certain stations on the pressure dial.

A further purpose is to progress crown caps forward in a pair ofadjoining tracks by eccentric finger bars, the crowns being out of stepinthe adjoining tracks during the bulk of the forward progression tohold the crowns in stop position by cams having dwells and to advancecrowns in one track into step with those in the adjoining track by anadvance surface on one of the cams.

A further purpose is to bring a series of crowns in one track which areout of step with an adjoining track into step by an advance face on acrown positioning cam while normally advancing crowns by finger bars,and to advance the crowns beyond the position of the advance face on thecam by an abnormally thick finger bar finger.

A further purpose is to advance crowns in a plurality of adjoiningtracks by stop and go motion normally out of step, to feed the crownsfrom one such track into a radially outer position on a pressure dial bythe rearmost finger on a finger bar, to bring the crowns from theadjoining track into phase with those of the first track, andsubsequently to bring the crowns from the second track into a radiallyinner position on the pressure dial by co-operatlve action of a rearwardfinger on another finger bar and an abutment.

Further purposes appear in the specifications and in the claims.

In the drawings I have illustrated two only of the possible forms inwhich my invention may be embodied, the species shown being chosen fromthe standpoint of satisfactory operation and convem'ence in illustrationof the principles involved.

Figure 1 is a fragmentary sectional top plan view of one embodiment ofthe invention, the section being taken on the line l-l of Figure 2. Thisview extends over Sheets 1 and 2.

Figure 2 is a fragmentary side elevation of the structure of Figure 1.This view extends over Sheets 1 and 2.

Figure 3 is a section of Figure 1 on the line 3-3, showing the punchhousing and the feed for the spot material.

Figure 4 is a section of Figures 1 and 2. on the line 44, showing theauxiliary pressure plungers and omitting the crown propulsion cams.

Figure 5 is a right end elevation of Figure 1 in the position indicatedby the line 55. This view shows the crown chutes, the drive for thecrown pushers and the drive for the crown propulsion cams.

Figure 6 is a section of Figure 1 on the line H, illustrating theeccentric finger bar for progressing the crowns near the ends of thetracks.

Figure 7 is a fragmentary enlarged sectional top plan view showing aportion of Figure 1 extending from the punches to the ends of thetracks. This view also shows the eccentric finger bar.

Figure 8 is a fragmentary side elevation of the structure shown inFigure 7, omitting the feed for the spot material and omitting all buttwo of. the punches.

Figure 9 is a fragmentary side elevation, actual size, showing thepressure dial of Figure 2 at the loading position.

Figure 10 is a top plan detail of a plate forming the anvil in which thecrown is received in the pressure dial.

Figure 11 is a side elevation detail of the pivot shown in Figure 10.

Figure 12 is a detail side elevation of a segment of the pressure camhousing of the pressure dial. Figure 13 is a fragmentary detail sideelevation of one of the pressure cams for the pressure dial. Figure 14is an enlarged fragmentary plan view showing the pusher mechanism at theextreme right of Figure 1.

Figure 15 is a fragmentary top plan view of a somewhat modifiedembodiment of the invention. This view extends over Sheets 8 and 9.

Figure 16 1s a section of Figure 15 on the line 16-46. This viewlikewise extends over Sheets 8 and 9.

Figure 17 is a section of Figure 15 on the line l|-l 1, showing thepunch housing and the mechanism for advancing the spot material.

Figure 18 is a section of Figure 15 at any desired position of drive forthe finger bars, the actual section being taken on the line l8-I8 of Fiure 15.

Figure 19 is a section of Figure 15 on the line l9-l9, showing one ofthe points of support for the track. v

Figure 20 is a section of Figure 15 on the line 20-20.

Figure 21 is a section of Figure 15 on the line 2 l-2i Figure 22 is afragmentary enlarged top plan view, being an'enlargement of Figure 15extending from the punches to and including the ends of the tracks, butomitting the plungers and cams on the pressure dial.

Figure 23 is a fragmentary sectional side elevation of Figure22, thesection being taken vertically through the loading position of thepressure dial.

- In the'drawings, like numerals refer to like parts throughout.

It is quite common to place protective spots in the inside of caps suchas crown caps for closing bottles. The usual crown cap contains aresilient liner suitably of cork secured to the interlor by cement orthe like. It is desirable, however, to protect the contents of thecontainer from contact with the resilient liner and forthis purpose aspot, usually of circular outline is centrally located on the inner faceof the resilient liner. i

Any one of a number of protective spot materials may be: used. The mostcommon are glassine paper, wax paper, tin foil, aluminum foil, leadcovered with protective synthetic. coatings. Where the invention isbeing used to apply liners to caps or the like, the sheet material maybe paper, cardboard, pulpboard or any other suitabl liner material.

The protective spot material is normally applied to the interior of thecap by adhesive. Adhesive may be coated on the inner surface of theresilient liner (cork) or on the surface of the protective spot materialwhich has to contact the resilient liner, or on both surfaces. This willbe done preferably .by an operation prior to that here described. If theadhesive is of the thermoplastic type, heat may be applied to thesurface containing the adhesive prior to the application of the adhesivesurface to the surface to which it is v to adhere. Likewise, pressuremay be applied on the spot material after it is afiixed to the resilientliner to assure that firm union is obtained.

The preferable adhesive materials are 'guttapercha, latex," or an alkydresin such as glycerol phtl'ialate or glycerol phthalate-maleate, ordrying oil modified glycerol phthalate or glycerol phthalate-maleate.These thermoplastic materials will, of course, be heated as desired torender them thermoplastic.

In the present practice of the art, caps are progressed in a single rowwith stop and go motion, and protective spot material is progressed by aco-operating stop and go motion transversely of the row of caps. As eachcap is brought to a stop under the stopped protective spot material asingle punch operates to cut out and simultaneously aflix a protectivespot to the center of the interior of a cap.

There is considerable waste in the protective spot material at the edgesand in the triangular portions left between the single line of punchholes.

The problem of elimination of such waste by stopping a plurality ofadjoining caps in a given row beneath a row of punches andsimultaneously punching out spots and aflixing them to all of the capsof the row is complicated by the fact that.

the spots are substantially smaller than the cap diameters, the capscannot be more closely placed than the position in which their flangesare touching, and very wide waste strips lie between adj oining spots insuch position.

In the usual prevous practice it is necessary to progress the protectivespot material at about the same linear speed as that at which the capsmove, with resultant danger of tearing the protective spot material andprincipally of tearing that portion from which the spots have alreadybeen cut. The production of the prior art spotting machines isrelatively low, as only a single row of caps can be employed.

The present inventor has discovered that, by employing a plurality ofrows of caps, by simultaneously cutting out and afllxing protectivespots to caps in each row, desirably by simultaneously cutting out andaffixing protective spots to aplurality of caps in a given row, and byproperly arranging the rows and the points of punching with respect toone another, very great savings can terial can be made. Using four rowsof caps and foil, and various other papers and foils coated or threesimultaneous punchings per row, the saving two stop and go cycles.

. ofrows of caps,'for a given linear speed of caps,

the production is greatly increased.

Where a plurality of protective spots are punched out and afllxed in agiven row of caps,

.the speed of travel of the protective spot-material need not be asgreat as the speed of travel of the caps, but will be a fraction of thespeed of travel of the caps approximately equal to the reciprocal of themultiple of the number of protective spots simultaneously punched outand affixed to a particular row of caps times the number of spotdiameters between crown centers in each row. Thus, if the number ofsimultaneous punchings upon the particular row of caps be two, and thecrown centers are approximately two spot diameters apart, the speed ofthe protective spot material will be about one-fourth that of the caps.If the number of simultaneous punchings upon a given row of capsbethree, and the crown centers are approximately two spot diametersapart, the speed of progression of the protective spot material will beabout one-sixth that of .the caps. If the number of simultaneouspunchings upon a particular row of caps be four and the crown centersare approximately two spot diameters apart, the speed of the protectivespot material will be about one-eighth that of the caps. This reducedspeed of the protective spot material tends greatly to reduce tearing,failure to feed and stoppage of the machine.

In each case in the preferred form, while the protective spot materialis moving through one stop and go cycle, the caps are moving throughWhen I indicate that the crowns and the protective spot material havecorresponding stop periods, I do not mean that the protective spotmaterial is necessarily stopped, at every stop period of the crowns, infact, it willnormally be at every other stop period.

A further advantage of the present invention is that the floor space,the number of machines and the investment in machines is definitely lessthan the equipment of the prior art.-

tance of internesting of the cut-outs between adjoining lines ofcut-outs.

The cap speeds may be as now employed, suitably of the order of fivehundred caps per minute in a given row.

- The manner of progression of the caps may beany usual or acceptedmanner which will produce intermittent or stop and go-motion, and.different forms of progression are shown in the two species illustrated.

In the form of Figures 1 to 14 inclusive, the main portions of themachine consist of the crown chutes 30, the crown tracks 3|, the pushermechanism 32, the crown actuating cams 33, the punch mechanism 34, thespot material feed 35, the auxiliary pressure plungers 36, the auxiliaryfinger bar 31 and the pressure dial 38.

There are four crownchutes 39, 40, 4| and 42, which extend laterally ofthe machine (Figure 5) and connect to the tracks 43, 44, or 46,respectively, which extend longitudinally from end to end of the machine(Figure 1) until the pressure dial is reached.

The tracks are supported from the base" of the machine by posts 48disposed at intervals (Figures 2 and 6). The posts support cross bars46, from which the rails are hung. The outer rails 56 and the innerrails 5| are fastened under the cross bars 49 by suitable means 52, eachrail 50 or 5i having a slot 53 (Figure 6) for receiving and guiding asuccession of crowns 54, as well known in the art.

The crowns, after they leave the chutes 36, are progressed forward bypushers 55, 56, 51 and 58 (Figures 1 and 14) which reciprocate inslotted guides 59 and are urged forward continually under the action oftension springs 60, each of which is secured at one end to thestationary structure at 6| and secured at the other end to itscorresponding pusher at pin 62. Extending across and above all of thepushers in front of pins 62 is a bar-63 (Figures 1 and 14), which re- Inorder to gain the advantages of the present invention, it is necessaryto relate the positions of punching of the protective spots to thepositions of the rows of crowns and the spacings of the crowns so thatthe cut-outs of protective spot material will be staggered in one linewith respect to the adjoining line and will, therefore, inter-nest.Thus, each successive punching uses a portion of the material whichwould otherwise be wasted in making the punchings of the adjoining line.Y

The caps move in parallel rows and the caps in each row are preferablyspaced so that the distance between the centers of adjoining caps isapproximately a multiple and preferably about twice or four times thediameter of the protective spot. The spacing of the caps will be uniformand will preferably closely approximate that used in the prior art.

When I say that the spacing of the cap centers is approximately amultiple of the spot diameter, I recognize that there is desirably aslight internesting of the cut-outs of adjoining lines. Thus thecut-outs of one line desirably slightly cross the line of tangents ofthe-cut-outs of the ad-' joining line on the adjoining side. The spacingof the cap centers in any row is then accurately a multiple of the spotdiameter minus the dis-.

ciprocates on a slideable member 64 in guides 66 (Figure 14) under theaction of a crank66 mounted upon an eccentric 61, which is actuated byspiral gears 68 and 69 (Figures 5 and 14). The gear 68 is supported ina" bearing bracket 10 and mounted on a shaft 'II. The gear'69 is mountedon the end of one of the crown actuating' cams, later to be described.

It will be evident that the pushers are spring urged forward and thatthe bar 63 as it moves forward allows the springs to pull the pushersforward but does not positively push the pushers forward. Anyobstruction encountered will therefore permit the pushers to stop, sincethey are merely urged forward by spring pressure.

It will be evident from Figures 1 and 14 that the chutes 39 and 4! andpushers 55 and 5'! acting in tracks 43 and 45 are relatively advancedwith respect to the chutes 40 and 42 and the pushers 56 and 58 acting intracks 44 and 46. For this reason, crowns in tracks 43 and 45 arerelatively out of line with those in tracks 44 and 46 even before thecrowns in the respective tracks encounter the cams.

The crowns are actuated in the tracks by stop and go motion appliedthrough cams 12, 13, 14 and 15, each of which has, along its normalcourse, advancing portion 16 and dwell portion 'l'l at each station.Each portion respectively covers of the cam. The cams are suppored bybearings in housing 18 at the charging end (Figure 5) and are supportedat the discharge end by bearings in housing 19 (Figures 6 and 7) whichare suitably mounted on the base 41 of the machine. The respective camsare driven and interconnected by a chain 30 passing across a line ofsprockets 3|, '32, 33 and 04, as indicated at 35, the chain itself beingdriven from the main shaft 35 01. the machine by a sprocket not shown.

In the device as illustrated in the form of Fi ures 1 to 14, there aretwo punches in each track, The punch 81 in the track 43is opposite apoint intermediate 'between'punches 39 and 90 in the track 44, and thepunch 30 is spaced one stop I and go cycle onthe crowns forward of punch91. Likewise the punch II in track 45 is opposite a' point intermediatebetween punches 93 and 94 in track 40. and the punch 92 is spaced onestop and g cycle on the crowns forward of punch 9I'. At the same timethe center of punch 92 is one crown diameter minus the distance ofinternesting on one side or a line of punch-outs, behind punch "in track44.

Inthe present invention, the punch positions and the track positionsare-related, as will be later described.

Each of the punches, as shown in Figures 1, 2,

3.7 and 8, consists of a punch shank 95'adjustably supported at 91 bya'punch bar 96 common to all of the punches, and carrying an individualpunch head or cutter 98 removably connected tothpunch shank-at 33.Electric resistance heaters for the punches are diagram- 1 maticallyindicated at 35'. Figure 8. The punch cooperates with a female die I00supported in a femalefdie" holder III common to all female dies.

' The punches are actuated as a gang through eccentrics I02- and I03.(Figure 3) which connect .;-.atp-.I04 to slides I05 in vertical guidemembers iodthe-slidesbeing fastened to the punch bar 96 bynuts 9G'.WEccentrics I02 and I03 are on main heft '80 and .auxiliary drive shaft36'.

Near the upper ends of the guide members I08 j :there are lugs I01 whichengage lugs I03 on punch housing members- I09 which extend vertiyeallyatH0 and horizontally at III across the .machine. The lugs I01 and I03 arefastened together by bolts. I01.

. The horizontal portion III provides positioning and cylindricalguiding means for the eight punches, and also carries at each end bossesH2 which support and guide the tappets H3 which support the crownlocator plate H4 at their lower ends. 0n the crown locator plate H4 ateach punch position are carried locating and guiding annular extensionsI I5'(Figure 8) whose outside diameter at the lower end is slightlyless'than the diameter of the crown and whose inside fits closely aroundthe-outside. of the punch head 98. One annular locating and guidingextension H5 is provided for each punch and when the plate H4 .moves toits lowermost-position, it positions the crowns firmly immediatelybeneath the spot punching locations.

\ The tappets H3 are surrounded by compression springs i I5 (Figure 3),acting at their lower ends against the bosses H2, so that the tappetsare normally urged upwardly. The tappets H3 are united together abovethe. spring stops Hl .by a cross bar H8 which is fastened at H9 (Figures3 and 4) to the punch bar 95.- As the locators move into their lowermostposition slightly in advance of the punches, the crowns are immobilizedwhen punchingoccurs. This insures concentric placement of the spots inthe crowns.

The spot material moves transversely of the tracks in stop and go motionhaving stop periods most rails 5I.

Geneva motion is used to drive inlet feeding rollers I20 and I2I andoutlet feeding rollers I22 and I23 in'suitable bearings carried'by ahousing I24 supported on the base plate of the machine.

The lower rolls I2I and I23 are driven by Geneva gears I25 and I26 onthe roll shafts. The Geneva slots of the gears mesh in pins I21 and I28on discs I29 and I30 driven by chains I3I and I3I' engaging sprocketsI32 and I32 connected to the shafts of discs I29 and I30 respectively.The chains I3] and l3I' are driven from sprockets I33 and I34 on thedrive shafts 85' and 86, The upper rolls I20 and I22 are pivotallysupported on arms I35 and driven by gears I36. The arms I35 are pivotedat I31 and I38 in extensions I39 and I40 of the housing I24. The upperrolls operate under a pressure determined by their own weight orsuitably increased by resilient means if required. The rolls I20 and I22can be raised for threading spotmaterial through the machine.

On the forward end of the punch housing.

I09, the innermost tracks are supported as shown in Figure 3 by'brackets HI and I42 engaging the vertical portion H0 or the punchhousing I09. The brackets HI and I42 support a cross bar I43beneath'which are fastened the inner- The outermost rails 50aresupported from lugs I44 on the guide members I05. At the rearward endof the punch housing, the innermost rails 5| are supported by bracketsI45 and I45 from the vertical portion H0 of the housing I09. Thebrackets I45 and I46 position a cross bar I41 which supports the tracksThe outermost rails are supported by lugs I48.

After the spots have been punched out and affixed to the crowns, it isdesirable to apply holding pressure and also heat during certain laterstages of the progress toward the pressure dial. This additionalpressure and heat will only be needed with certain types of adhesive,such as thermoplastic resins and gums.

The auxiliary pressure plungers in .the adjoining tracks are necessarilyout of line so that they will match with the positions of stop of thecrowns during theirintermittent progress. Plungers I49 and I50 in tracks43 are desirably in the same position as plungers I5I and I52 in track45, while, correspondingly, plungers I53 and I54 of track 44 andplungers I55 and I55 of track 45 will desirably be opposite one another,but out of phase with respect to plungers I49 to I52.

Thepunch housing I09 is recessed at I09 (Figure '7) to permit placementof auxiliary pressure plungers I50 and I52 closer to-the punch housingthan would otherwise be possible in tracks 43 and 45. Also as shown inFigure '7, the cross bar M1 is recessed at I41 for a similar purpose.

and I59 (Figures 1, 2, 4, 7 and 8) from the main frame.

The pressure plungers themselves are resiliently urged upward by springsI60 acting between.

the cross bar I51 and heads I 6| on the upper ends of the plungers' Theplungers are depressed by a cross bar I62 having projections I63, I64,I65 and I66. The bar I62 is rigidly mounted on the punch bar, 96.

Thus it will be seen that the reciprocation of the punch bar 96 operatesthe punches, which are fastened to the punch bar, and also operates thelocator plate which is resiliently connected to the punch bar and theauxiliary pressure plungers which are depressed by the cross bar I62from the punch bar.

In case heat is to be applied by the auxiliary pressure plungers I49 toI56, inclusive, suitable heating means may be employed, as for example,electric resistance heating elements I49 indicated in Figure 4.

It will be evident that during each forward movement of the track camfor crown advancing, the crowns move forward. During the next portion ofthe cam rotation, usually about 180, the crowns are held against advanceand at least roughly located by the crown dwells. During this portion ofthe cam movement, when occasion arises for accurate crown positioning,as at the moment when the spot is to be applied, the crown position ismore accurately determined by the crown locator. During the period priorto and immediately subsequent to the afllxing of the spot, the adjacenttracks are necessarily out of phase or not abreast in order to obtainthe desirable economy in punching of the spot material.

Subsequent to the aiiixing of the spot and desirably subsequent to theapplication of heat and pressure to the spot by the auxiliary pressureplungers, it is necessary to advance the crowns in certain tracksabnormally in order to place all crowns abreast prior to transfer to thepressure dial. This assists in simplification of the pressure,dialstructure and avoidance of abnormal pressure dial alignment at certainpoints.

As seen in Figures 1, 2, '7 and 8, the cams 13 and 15 at positions I61are provided with advancing faces on the dwell side, so that the crownsare advanced not only during the portion of the cam circumference duringwhich advancing has normally taken place, but also during about one-halfof the remaining cam circumference. Thus it is seen that the crowns atI69 (Figure 1) have advanced a step and a half from the previous dwellposition. The final stage of advance of the crowns in the tracksbeyondthe ends of the cams 12 to 15 is accomplished by an eccentricfinger bar I69 (Figures 1, 2, '7 and 8), which, by its oscillatingmotion, carries the crowns over the end bearings at 19. The top of thebearing housing 9 supports and guides the finger bar I69 at I on itsfiat upper surface. Fingers I1I to I10 (Figures 6, '7 and 8), twooperating in each of the tracks, progress the crowns as the finger barI69 oscillates under the action of the eccentrics I19 and I80,connecting to the extensions I8I and I82 on the finger bar I69 byeccentric pins I83 and I84.

The eccentrics I19 and I80 are supported on vertical shafts I85 and I86(Figures 1, 6 and 8) which are driven from the drive shafts 86 and 96'by beveled gears I81 and I88. At the back end of the track, the driveshafts 86 and 86' are supported by bearings I89 (Figures 1 and 2).

12 It will be noted that the ends of the cam shafts are-reduced indiameter adjacent their rearward end bearings as shown in Figure 6.

For the purpose of maintaining adequate interconnections between theshafts 86 and 86', a chain interconnection is shown at I90 (Figure 1)operating on sprockets I9I and I9I'.

From the track the spotted crowns must be carried to a pressure dial forcontinuous pressure application, with heat if necessary, where theadhesive is allowed to set.

The pressure dial 38 is supported from main bearings I92 and I92 on asuitable base 203 which may separate from, but will preferably be rigidwith the base 41. A shaft I93 extends across the pressure dial from endto end and supports a cast or otherwise fabricated rotor I94, desirablycored at I95 and carrying a suitably integral worm wheel I96, whichengages worm I91 (Figured) on shaft I98 in bearings I99 secured to base203. The shaft I98 is driven frommain shaft 86 by a chain 200 operatingon sprockets 20I and 202. I

The pressure dial is provided with a large number of radial clampingstations 204, each of which is provided with four clamps, 205, 206, 201and 206, corresponding to the respective tracks from which the crownsare received. The pressure lever 209 in each clamp is pivoted at 2I0 ona pin 2 supported in one of a pair of standards 2I2, fastened at 2 I3toone of the anvils 2. The anvils are suitably fastened to the rotor at2I5. On the operating end of each anvil is provided a crown locator 2I6having recesses 2" and 2" into which a crown will fit. The pressure isapplied by pressure heads 2I8 which are secured at 2I9 to the pressurelevers.

At the desired point of pressure application, pressure is applied to thereverse ends 220 of the pressure levers 209. The pressure levers arecontinually urged toward closure of the pressure heads 2I8 under actionof compression springs 22I (Figure 9) which operate between recesses 222of the anvils (Figure 10) and bosses 222' of the pressure levers. Whenit is desired in dial operation to maintain the Pressure heads in openposition, the opposite ends 223 of the levers 209 are depressed by cams224 (Figures 9 and 13) on cam shafts 225 which have bearings at 226fastened to the ends of the dial housing. Each bearing unit 226' carriesthree bearings 226 as shown in Figures 2 and 9. The attachment to theside frame of the rotor is indicated at 221 in Figures 2 and 9. 4

In order to insert and remove the cams, the sides of the pressure dialrotor have suitably oval recesses at 228 (Figures 2 and 9). Also forconvenience in assembling and disassembling the cam shaft, each camshaft is made in two parts desirably threaded together at 229 (Figure13).

The cam shafts are actuated by cam rollers 230 on crank arms 29I. Onopposite sides of the machine, stationary track cams 232 are positioned(Figures 1 and 2), suitably at the discharge station and in advance ofthe loading station, as shown in Figure 2. The cam-s 292 are supportedby brackets 233 mounted on the base 203. It will be understood that theexact design of the cam 232 and its exact location will to some extentbe controlled by the character of the adhesive and the necessity or thelack of necessity for quick application of pressure.

It will be evident that the forward motion of the crowns under theaction of the finger bar I69 causes the crowns to travel beyond thetrack and 13 into the recesses 2H and 2Hv of the crown locator 216. At te loading station 234 four crowns (one from each track) will be locatedsimultaneously in this position. The pressure dial moves upwardcontinuously at the station 234 and by the time that the crown's'at234-have moved upward, the cam rollers of the corresponding cam shaftare released from the cams 232, and the springs -22l cause the pressureheads 2 It to close and apply resilient pressure continuously to thespots and the crowns against the anvi1s2l4. This condition maintainedthroughout the remainder of the circumference of the pressure dial untilthe crowns reach the discharge position 235 (Figure 2), at which pointthe cam rollers 230 again encounter the cams 232 and the pressure heads2 is open. The crowns then drop under the action of gravity aided ifdesired by a blast of air, to a discharge conveyor 236 (Figures 2 and4), supported by tension'rollers 231 and 238 and driven by shaft 86 (nowreduced in diameter) through spiral gears 239 and 240, through shaft 2and worm 242 connecting to worm' wheel 243. The shaft 24! is'supportedby-suitable bearings 244. The conveyor is supported by brackets 245 fromthe base of the machine.

From the discharge end of the conveyor 236, crowns may be carried toinspection belts, loading mechanism and the like as desired.

Any suitable main drive may be provided for the shaft 86, a pulley at246 being indicated in Figure 2. I

- In operation, it will be noted that crowns may enter from any suitablehopper (not shown) by crown chutes 30, and are engaged by the pushermechanism 32 which progresses them longitudinally in the tracks untilthey are picked up and carried forward by the advance portions of thecams 33.

The location of the chutes is such that, as soon as'the crowns areengaged by the pushers, the crowns in adjoining tracks are one-halfcrown center distance out of phase. This is necessary in order that thecrown positions may properly cooperate with the special punch positionsas required by the present invention.

It should be noted that the crown track centers are spaced with respectto one another in adjoining tracks by a distance which is approximatelya multiple of the spot diameter plus a half. In this case, the spacingis three and a half times the spot diameter plus the clearance betweenthe punch outs.

From the point at which the crowns meet the advancing cams, they areprogressed forward with or without heat application as may be requiredby the particular adhesive which will be suitably applied to the reverseface of the spot 14 punch not only cuts off the spot material'butcontinues in its stroke until the lower surface of the spot contacts thelining of the crown and the spot is affixed in central position tothecrown.

--The crownthus retains its spot when the punch moves upward. The crownis progressed forward by thenext advance face of the cam to the nextsucceeding position'and continues step by step until :it encounters oneof the auxiliary pressure" plungers 36 which applies pressure-to thespot,

suitably also heating the spot during the period of one or preferablytwo .cam dwells.

When the crowns have advancedbeyond the auxiliary pressure plungers,they are put in relative alignment in the various tracks by the specialcam portions I61 and are then carried forward by the fingers of theeccentric finger bar into the pressure dial 36. As soon as the crownsreach the pressure dial, they are subjected to pressure application bypressure heads 2| 8 and are held for a predetermined period until theadhesive has set. The crowns are then discharged by the conveyor 235;During the movement in the-'pres sure dial thecrowns maybe heated ifdesired.

In the formof the invention shown by Figures 15 to 23, I haveprovidedfor two rows of crowns instead of four as in the other device.

Many of the features are-common to the two machines and others areslightly modified to meet the special requirements of the .smallernumber of tracks.

Crowns enter the machine through chutes 241 and 248 which feed to tracks249 and 250 which are-formed fromouter rails 25] and 252 and a centerrail 253. The outer rails are rigidly supported from brackets 254 and255on the main frame 256 and the center rail is supp rted likewise onthemainframe by brackets 251. Re-

cesses for supporting the crowns are provided in the rails at 266(Figure 19) Each bracket 254 or 255 carries a flange 259 which providesa horizontal guide for a finger'bar 260 extending longitudinally of the,machine and carrying fingers 26! for engaging andprogressing the crowns.

As in the other device, already described, the crowns leaving the chutes241 and246 encounter pushers 262 and.263 in guides 264 and 265resiliently urged into their forward'position' by tension springs 266and 261 operating between a stationary support 268 and pins 269 on thepushers. In front of the pins 269, a T-shaped cross bar 216 extendsbetween and across the pushers material prior to use in the machine. Ofcourse it will be evident that, if desired, adhesive may be applied tothe top of the lining of the croym,

additional to or instead of the adhesive on'the spot.

When the crowns *have reached a position im-.

mediately below the punches in their particular tracks, during the dwellportion of the cam rotation, the crowns will first be contacted by theprojections H5 of the crown 'locator, which will correct anymisalignment of the crowns withre- The drive to the shafts 211 and 218is through chain 286 and sprocket 28! on shaft 211 inter- 21! (Figure20).

and is guided for reciprocating motion by guides The crossbar 216 isactuated by a crank arm 212 connected to an eccentric 213 mounted on aspiral gear 214 on a shaft 215 and meshing with a spiral gear 216 onthe'cam shaft fii'l. Shaft 211 and cooperating shaft 218 :are. supportedin suitable bearing brackets 219' and-extend for the full length of themachine.

connecting to shaft 218 by gears 282 and 283 (Figure 15).

The shafts 211 and 216 carry'locator cams or 1 dwells 26twhich are outof phase in'the respective tracks as shown on Figure 1 5. The cams 264perform purely the locator function, since the function-of progressingthe crownsforward, is performed injthis machine by; the fingers 265 1and not by cam advancing portions.

It will be evidentthat in either machine,'theprogression might beaccomplished by the fingers or by the advancing cams, with slightmodifica- 15 tion to accommodate the different space requirements.

The finger bars 260 move in an eccentric path under the action ofeccentrics 285 which connect by eccentric pins 286 to finger barextensions 281. The eccentrics 285 are. supported by bearings 288 onshafts 289 driven by spiral gears 290 on main shaft 29I through spiralgears 292 on the lower ends of shafts -289 (Figure 18). The main shaft29l runs substantially the length of the machine and is supported byhearing brackets 293.

The punch housing 294 is substantially identical with the punch housingdescribed for the other species. The punches 295 and 295' in track 249,and 296 and 296' in track 250 are adjustably secured at 291 to plates298, which are supported by bosses 299 on vertically slideable members300 operating in guides 301 of I uprights 302. Bar 303 cross connectsthe slideable members 300 near the bottom. The entire assembly,including the bar 303 and the slideable members 300 as well as theplates 298 is reciprocated up and down by eccentric 304 within eccentricstrap 305, which is connected to bar 303 by pivot pin 306 (Figure 17).

The female die 301 and punch heads 308 are desirably identical withthose already described.

The locator plate 309 is supported in locator plungers 3I0 on oppositesides of the machine, guided by bosses 3H and spring urged upward bysprings 3l2 acting between bosses 3H and collars 313 on the plungers3l0. The upper parts of the plungers 310 are held by brackets 3l4 whichare secured to plates 298.

On the lower portion of the locator plate, the locator extensions 3l5are shown in Figure 23 in lowermostposition surrounding the punch headat the point of spot application.

The feed for the spot material in this form is identical with thatalready described except for slightly different actuation of the discsI29 and I30 which carry the Geneva pins 121 and I28. On the same shaftsas discsl2 9 and I30 are spiral gears 3| 6 and 3| 1 which respectivelyinterconnect with spiral gears 3|8 and 319 on a cross shaft 320- (Figure17) in bearings 321 supported from the main frame. The shaft 320 isinterconnected with the main drive shaft 29l by spiral gears 322 and323.

At the rear end of the punch housing, suitable auxiliary heating andpressure plungers are provided, as shown in Figures 15, 16, 22 and 23.The auxiliary plungers 324 and 325 are supported and cylindricallyguided by bracket extensions 326 and 321 from the plate 298.

Springs 328 acting between extensions 326 or 321 and heads 324'resiliently urge the plungers downward and they are carried up and downwith the reciprocation of plates 298.

The punch housing 294 has extensions 329 which are secured to bosses329' from the uprights 302.

In front of the auxiliary pressure plungers within the punch housing,the finger bars are supported by special brackets 330 (Figure 17)extending upward from the main frame and also supporting the outerrails.

Beyond the punch housing and the auxiliary plungers, the crowns in row250 receive an abnormal advance from the cam portion 33l, which advancesa crown until it is abreast of the corresponding crown in row 249. Thisadvance takes place while other crowns are in a period of dwell. Also atthe point opposite the cam the crown forward the normal distance. Thefinger 332 has a forward face 333 which corresponds with the forwardface of the corresponding finger in'the track 249 and has a rearwardface 334 which cooperates with the forward face 335 of the precedingfinger to hold the crown prior to its advance by the cam face 331.

In the present species, the pressure dial is on a vertical axis.

The pressure dial consists of a rotor 336 on a. central shaft 331 havingbearings 338 (Figure 16) and supported from the main frame at 338. Thecircumference of the rotor is preferably constructed of a separateannular member 340 secured at 341 to the hub portion 342 of the rotor.At the points of attachment 34I there are slots 342' (Figure 15) topermit circumferential adjustment of the radially outer portion 340 withrespect tothe hub342. The rotor 336 is continuously driven by a ringgear343 (Figure 16) secured at 344 to the bottom of the hub portion 342:The gear 343 is driven by any suitable means, not shown.

Near the outer circumference of the rotor I provide upper and lowerannular plates 345 and 346 positioned and spaced by studs 341. Openingsin the annular plates 345 and 346 position and guide plungers 348 in theouter row and plungers 349 in the inner row. Electric resistance heatersfor the plungers are conventionally indicated at 348' and 349, Figure23.

Below the ends of the plungers is provided a recess 350 whose bottomportion 351 serves as the anvil against which the crowns are pressed.Locator plates 352 (Figure 22) provide recesses 353 to locate the crownson the anvils beneath the inner row of plungers 349 and provideabutments 354 for locating the inner edges of the outer row of crownsbeneath the plungers 348.

Surrounding each plunger is a compression spring 355 which operatesbetween the lower edge of the plate 345 and the pin 356.

0n the inner ends of the plungers 348 and 349 I machine flats 351 whichleave shoulders 358 (Figure 23). Engaging the flats I provide strips 359in recesses 360 which prevent the plungers from turning. Carried on theupper ends of the plungers are cam rollers 36l which are normally out ofengagement, permitting the plungers 348 and 349 to move to lowermostposition under the action of the springs 355, and thus clamping thespots against the linings of the crowns.

At times of loading and discharge, the cam rollers 36| encounter cams362 and 363 in the respective inner and outer rows of plungers and arepulled against the action of the springs into uppermost positions.

The cams are adjustably supported in a cam housing 364 which extendsfrom one side to the other of the tracks.

When the finger bar in each of the tracks moves forward, the last finger365 operating in track 249 carries a crown onto the outer ledge of theanvil as shown at 366. The end 361 of the central rail and the abutment354 on the locator plate locate the crown and it is immediately engagedby a plunger in the outer row, which is released by its cam at thatmoment.

From the track 250 a crown is swept forward by the finger 368 to theposition 369 exactly opposite position 366, and here it is held by theedges 310 and 3H of the rails. As the pressure dial moves continuouslyin the direction of the arrow, a recess 353 in the inner row reaches a

